67 



developed the annulus on each wing, but were normal in size. 

 •He said that it would be interesting to note the size, colour, 

 and markings of the imagines yet to be bred from the pupae 

 going over the winter. 



Mr. Auld exhibited a specimen of Zygcena lonicercB from 

 Chattenden, with partially sub-diaphanous wings. 



Mr. Lucas exhibited a number of specimens of Periplaneta 

 australasice from Kew Gardens and Bishop's Waltham, com- 

 prising males, females, and immature (wingless) examples. 

 The yellow rim to the pronotum is much more developed in 

 the female than in the male, and this character serves to 

 distinguish the sexes. 



Mr. Tutt made the following exhibits, and contributed 

 notes as under : — Specimens of Orrhodia vaccinii, two of 

 which bore a close resemblance in coloration to 0. erythro- 

 cephala, ab. glabra. The form was not unlike that described 

 as ab. obsacra ('Brit. Noct.,' iii, p. 3). A series of Zygcena 

 ex'ulans from Le Lautaret, Dauphine Alps, taken during the 

 first week in August. The smallest specimens were from an 

 elevation of about gooo feet. Those specimens from about 

 7000 feet to 8000 feet elevation were large ; but as the herb- 

 age got sparse on higher slopes the specimens became much 

 smaller. This was evidently a case of stunting due to the 

 condition of their food-plant. It was observed that the 

 small males suffered but little as regards depth of coloration, 

 but the females did differ considerably in this respect. Two 

 specimens of Lithosia lutarella, of the deep orange type form. 

 This species was found all over the high Alps ; the two 

 specimens were from La Grave in Dauphine, and were cap- 

 tured at about 6000 feet elevation, just below the La Meige 

 Glacier, on August 8th. The habits of the species were 

 most interesting ; the males were seen assembling in great 

 numbers during the morning. On one occasion, when a 

 warm drizzle was falling, they were in great abundance, as 

 also were the two yellow species, Acidalia flaveolaria and 

 Cleogene lutearia. The slopes seemed to be literally alive 

 with these species. Acidalia ochrata, both sexes of the large 

 type form ; our British form of this species is the perochraria 

 of Stephens. The specimens exhibited were taken at Bourg 

 St. Oisans in the Romanche Valley (Dauphine), at about 

 3000 feet elevation, in the middle of August. A series of 

 the beautiful Psecadia pusiella, a Tineid which he had found 

 in the greatest profusion on the trunks of old sallow, oak, 

 and poplar that grew in a rocky gully at the back of La 

 Grave. The species was seen drying its wings on the grass 



